Detection equipment for proportional servo valve

Abstract

The utility model discloses detection equipment for a proportional servo valve, which comprises a bottom plate, a sealing test water tank is fixedly connected to the center of the top of the bottom plate, and electric telescopic rods are fixedly connected to two sides of the top of the bottom plate. A motor is started to drive a threaded rod to rotate, the threaded rod rotates to drive a threaded block to move on the surface of the threaded rod through threads, the threaded block moves to drive a guide sleeve to slide on the surface of a guide rod, and the threaded block moves to drive a sliding column to slide in an inner cavity of a sliding groove; two sliding columns move inwards to drive two movable clamping plates and a clamping limiting sleeve to clamp and limit a proportional servo valve, an air extracting pump is started to extract air through an air extracting pipe, and the air enters the clamping limiting sleeve and an inner cavity of the proportional servo valve through the air extracting pipe, the air extracting pump and an air outlet pipe. And the electric telescopic rod is started to retract to drive the box body, the sliding column, the movable clamping plate and the clamped proportional servo valve to descend and extend into water in the inner cavity of the sealing test water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of proportional servo valve detection, in particular to a proportional servo valve detection device. Background Art

[0002] The full name of the proportional valve is the electro-hydraulic proportional valve. It is a hydraulic valve that converts the input electrical signal into force or displacement in proportion, thereby continuously controlling parameters such as pressure and flow. The proportional valve is composed of a DC proportional solenoid and a hydraulic valve. The hydraulic valve part is not much different from the general hydraulic valve, but the DC proportional solenoid is different from the electromagnet used in the general solenoid valve. The proportional solenoid can obtain the displacement output and suction output proportional to the given current. The proportional valve can be divided into three categories according to its control parameters: proportional pressure valve, proportional flow valve, and proportional directional valve.

[0003] During the production and processing of proportional servo valves, it is necessary to perform a sealing test on the proportional servo valves. The current existing method of testing proportional servo valves is for workers to manually test the sealing of the proportional servo valves. As a result, during the production of proportional servo valves, workers frequently perform manual testing on the proportional servo valves, which causes workers to easily encounter time-consuming and labor-intensive situations and reduces work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a detection device for a proportional servo valve, which has the advantage of automatically performing a sealing test on the proportional servo valve, and solves the problem that the existing detection method of the proportional servo valve is that the workers manually perform a sealing test on the proportional servo valve, resulting in the problem that when the proportional servo valve is produced, the workers frequently manually test the proportional servo valve, which makes it easy for the workers to be time-consuming and labor-intensive.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a detection device for a proportional servo valve, comprising a base plate, a sealed test water tank fixedly connected to the center of the top of the base plate, electric telescopic rods fixedly connected to both sides of the top of the base plate, a clamping drive assembly is arranged on the top of the electric telescopic rod, movable clamping plates are fixedly installed on both sides of the bottom of the clamping drive assembly, a clamping limit sleeve is fixedly connected to the bottom of the inner side of the movable clamping plate, an air pump is fixedly installed on the top of the outer side of the movable clamping plate, an air pump is connected to the outside of the air pump with an air suction pipe, an air outlet pipe is connected to the bottom of the air pump, and an end of the air outlet pipe away from the air suction pump passes through the inner cavity of the clamping limit sleeve.

[0006] As a preferred solution, a mounting seat is fixedly connected to the inner side of the vacuum pump, and the inner side of the mounting seat is fixedly mounted to the top of the outer side of the movable clamping plate.

[0007] As a preferred solution, a sealing ring is bonded and connected to the surface of the clamping and limiting sleeve, and the material of the sealing ring is sealing rubber.

[0008] As a preferred solution, the clamping drive assembly includes a box body, the bottom of the box body is fixedly connected to the top of the electric telescopic rod, sliding grooves are opened on both sides of the bottom of the box body, the bottoms of both sides of the inner wall of the box body are fixedly connected to the motor, the output end of the motor is fixedly connected to the threaded rod, the surface of the threaded rod is threadedly connected to the threaded block, the top of the threaded block is fixedly connected to the guide sleeve, the inner cavity of the guide sleeve is slidably connected to the guide rod, both ends of the guide rod are fixedly connected to the fixed block, the top of the fixed block is fixedly connected to the top of the inner wall of the box body, the bottom of the threaded block is fixedly connected to the sliding column, the surface of the sliding column is slidably connected to the inner cavity of the sliding groove, and the bottom end of the sliding column penetrates to the bottom of the sliding groove and is fixedly connected to the top of the movable clamping plate.

[0009] As a preferred solution, the inner end of the threaded rod is sleeved with a bearing seat, the inner side of the bearing seat is fixedly connected with a fixing plate, and the bottom of the fixing plate is fixedly connected to the center of the bottom of the inner wall of the box body.

[0010] As a preferred solution, guide grooves are provided on both sides of the top of the inner wall of the box, the inner cavity of the guide groove is slidably connected with a guide block, and the bottom of the guide block is fixedly connected to the top of the guide sleeve.

[0011] As a preferred solution, the length and width of the inner cavity of the sliding groove are both greater than the length and width of the sliding column, and the height of the inner cavity of the sliding groove is less than the height of the sliding column.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model drives the threaded rod to rotate by starting a motor, and the rotation of the threaded rod drives the threaded block to move on the surface of the threaded rod through the thread, and the movement of the threaded block drives the guide sleeve to slide on the surface of the guide rod, and the movement of the threaded block drives the sliding column to slide in the inner cavity of the sliding groove, and the two sliding columns move inwardly and drive the two movable clamping plates and the clamping limit sleeve to clamp and limit the proportional servo valve. The vacuum pump is started to draw air through the vacuum pipe, and the air is drawn into the clamping limit sleeve and the inner cavity of the proportional servo valve through the vacuum pipe, the vacuum pump and the air outlet pipe. The electric telescopic rod starts to shrink and drives the box body, the sliding column, the movable clamping plate and the clamped proportional servo valve to descend and extend into the water in the inner cavity of the sealing test water tank. Since the inner cavity of the proportional servo valve is inflated, if bubbles emerge from the proportional servo valve, the proportional servo valve is unqualified, and if no bubbles emerge from the proportional servo valve, the proportional servo valve is qualified, thereby achieving the advantage of automatically performing sealing detection on the proportional servo valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a front view of the structure section of the utility model;

[0016] Figure 3 This is an enlarged cross-sectional view of the internal structure of the clamping drive assembly of the utility model;

[0017] Figure 4 It is a left-side structural sectional view of the utility model.

[0018] In the figure: 1. bottom plate; 2. sealing test water tank; 3. electric telescopic rod; 4. clamping drive assembly; 41. box body; 42. sliding groove; 43. motor; 44. threaded rod; 45. threaded block; 46. guide sleeve; 47. guide rod; 48. fixed block; 49. sliding column; 410. bearing seat; 411. fixed plate; 412. guide groove; 413. guide block; 5. movable clamping plate; 6. clamping limit sleeve; 7. vacuum pump; 8. vacuum pipe; 9. exhaust pipe; 10. mounting seat; 11. sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Embodiment 1:

[0022] See also Figure 1-Figure 4 As shown, the utility model provides a detection device for a proportional servo valve, including a base plate 1, a sealing test water tank 2 is fixedly connected to the center of the top of the base plate 1, electric telescopic rods 3 are fixedly connected to both sides of the top of the base plate 1, a clamping drive assembly 4 is arranged on the top of the electric telescopic rod 3, a movable clamping plate 5 is fixedly installed on both sides of the bottom of the clamping drive assembly 4, a clamping limit sleeve 6 is fixedly connected to the bottom of the inner side of the movable clamping plate 5, an air pump 7 is fixedly installed on the top of the outer side of the movable clamping plate 5, an air pump 7 is connected to the outer side of the air pump 7 with an air suction pipe 8, and an air outlet pipe 9 is connected to the bottom of the air pump 7, and the end of the air outlet pipe 9 away from the air pump 7 passes through the inner cavity of the clamping limit sleeve 6.

[0023] Through the above technical scheme, the inner side of the vacuum pump 7 is fixedly connected with the mounting seat 10, the inner side of the mounting seat 10 is fixedly installed with the top of the outer side of the movable clamping plate 5, and the surface of the clamping limit sleeve 6 is bonded and connected with a sealing ring 11, and the material of the sealing ring 11 is sealing rubber. By setting the clamping drive component 4, it is convenient to drive the movable clamping plate 5 and the clamping limit sleeve 6 to move, and it is convenient to clamp and limit the proportional servo valve. By setting the mounting seat 10, the vacuum pump 7 is convenient for fixed installation and disassembly and maintenance. By setting the sealing ring 11, the gap between the proportional servo valve and the clamping limit sleeve 6 is sealed.

[0024] Embodiment 2:

[0025] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 4 As shown, the clamping drive assembly 4 is disclosed to include a box body 41, the bottom of the box body 41 is fixedly connected to the top of the electric telescopic rod 3, sliding grooves 42 are provided on both sides of the bottom of the box body 41, the bottoms of both sides of the inner wall of the box body 41 are fixedly connected with motors 43, the output end of the motor 43 is fixedly connected with a threaded rod 44, the surface of the threaded rod 44 is threadedly connected with a threaded block 45, the top of the threaded block 45 is fixedly connected with a guide sleeve 46, the inner cavity of the guide sleeve 46 is slidably connected with a guide rod 47, both ends of the guide rod 47 are fixedly connected with fixed blocks 48, the top of the fixed block 48 is fixedly connected to the top of the inner wall of the box body 41, the bottom of the threaded block 45 is fixedly connected with a sliding column 49, the surface of the sliding column 49 is slidably connected to the inner cavity of the sliding groove 42, and the bottom end of the sliding column 49 penetrates to the bottom of the sliding groove 42 and is fixedly connected to the top of the movable clamping plate 5.

[0026] Through the above technical scheme, the inner end of the threaded rod 44 is sleeved with a bearing seat 410, and the inner side of the bearing seat 410 is fixedly connected with a fixing plate 411, and the bottom of the fixing plate 411 is fixedly connected to the center of the bottom of the inner wall of the box body 41, and guide grooves 412 are opened on both sides of the top of the inner wall of the box body 41. The inner cavity of the guide groove 412 is slidably connected with a guide block 413, and the bottom of the guide block 413 is fixedly connected to the top of the guide sleeve 46. The length and width of the inner cavity of the sliding groove 42 are greater than the length and width of the sliding column 49, and the height of the inner cavity of the sliding groove 42 is less than the height of the sliding column 49. By providing the bearing seat 410 and the fixing plate 411, the threaded rod 44 is stabilized during rotation, and the stability of the threaded rod 44 during rotation is increased. By providing the guide groove 412 and the guide block 413, the guide sleeve 46 and the threaded block 45 are stabilized during movement, and the stability of the guide sleeve 46 and the threaded block 45 during movement is increased. By providing the sliding groove 42, the sliding column 49 is facilitated to move left and right.

[0027] The working principle of the utility model is as follows: first, the proportional servo valve is placed between the two clamping limit sleeves 6, and then the motor 43 is turned on by the external controller. The motor 43 starts to drive the threaded rod 44 to rotate. The threaded rod 44 rotates and drives the threaded block 45 to move on the surface of the threaded rod 44 through the thread. The threaded block 45 moves and drives the guide sleeve 46 to slide on the surface of the guide rod 47. The threaded block 45 moves and drives the sliding column 49 to slide in the inner cavity of the sliding groove 42. The two sliding columns 49 move inward and drive the two movable clamping plates 5 and the clamping limit sleeve 6 to clamp and limit the proportional servo valve. Then, the vacuum pump 7 is turned on by the external controller to pump air. When the pump 7 is started, air is pumped through the air suction pipe 8. The air is pumped into the inner cavity of the clamping limit sleeve 6 and the proportional servo valve through the air suction pipe 8, the air suction pump 7 and the air outlet pipe 9. Then the electric telescopic rod 3 is opened through the external controller. The electric telescopic rod 3 starts to contract and drives the box body 41, the sliding column 49, the movable clamping plate 5 and the clamped proportional servo valve to descend and extend into the water in the inner cavity of the sealing test water tank 2. Since the inner cavity of the proportional servo valve is inflated, if bubbles emerge from the proportional servo valve, the proportional servo valve is unqualified. If there are no bubbles in the proportional servo valve, the proportional servo valve is qualified, thereby achieving the advantage of automatically performing sealing detection on the proportional servo valve.

[0028] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0029] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A detection device for a proportional servo valve, comprising a base plate (1), characterized in that: A sealing test water tank (2) is fixedly connected at the center of the top of the base plate (1), electric telescopic rods (3) are fixedly connected to both sides of the top of the base plate (1), a clamping drive assembly (4) is arranged on the top of the electric telescopic rod (3), a movable clamping plate (5) is fixedly installed on both sides of the bottom of the clamping drive assembly (4), a clamping limit sleeve (6) is fixedly connected to the bottom of the inner side of the movable clamping plate (5), an air pump (7) is fixedly installed on the top of the outer side of the movable clamping plate (5), an air pump (8) is connected to the outer side of the air pump (7), an air outlet pipe (9) is connected to the bottom of the air pump (7), and an end of the air outlet pipe (9) away from the air pump (7) passes through the inner cavity of the clamping limit sleeve (6).

2. A detection device for a proportional servo valve according to claim 1, characterized in that: The inner side of the vacuum pump (7) is fixedly connected to a mounting seat (10), and the inner side of the mounting seat (10) is fixedly mounted to the top of the outer side of the movable clamping plate (5).

3. The detection device for a proportional servo valve according to claim 1, characterized in that: A sealing ring (11) is bonded and connected to the surface of the clamping and limiting sleeve (6), and the sealing ring (11) is made of sealing rubber.

4. The detection device for a proportional servo valve according to claim 1, characterized in that: The clamping drive assembly (4) comprises a box body (41), the bottom of the box body (41) is fixedly connected to the top of the electric telescopic rod (3), sliding grooves (42) are provided on both sides of the bottom of the box body (41), the bottoms of both sides of the inner wall of the box body (41) are fixedly connected to motors (43), the output end of the motor (43) is fixedly connected to a threaded rod (44), the surface of the threaded rod (44) is threadedly connected to a threaded block (45), and the top of the threaded block (45) is fixedly connected to a guide sleeve (46). The inner cavity of the guide sleeve (46) is slidably connected to a guide rod (47), and both ends of the guide rod (47) are fixedly connected to fixed blocks (48), and the top of the fixed block (48) is fixedly connected to the top of the inner wall of the box body (41). The bottom of the threaded block (45) is fixedly connected to a sliding column (49), and the surface of the sliding column (49) is slidably connected to the inner cavity of the sliding groove (42). The bottom end of the sliding column (49) penetrates to the bottom of the sliding groove (42) and is fixedly connected to the top of the movable clamping plate (5).

5. A detection device for a proportional servo valve according to claim 4, characterized in that: The inner end of the threaded rod (44) is sleeved with a bearing seat (410), the inner side of the bearing seat (410) is fixedly connected with a fixing plate (411), and the bottom of the fixing plate (411) is fixedly connected to the center of the bottom of the inner wall of the box body (41).

6. A detection device for a proportional servo valve according to claim 4, characterized in that: Guide grooves (412) are provided on both sides of the top of the inner wall of the box body (41), the inner cavity of the guide groove (412) is slidably connected to a guide block (413), and the bottom of the guide block (413) is fixedly connected to the top of the guide sleeve (46).

7. A detection device for a proportional servo valve according to claim 4, characterized in that: The length and width of the inner cavity of the sliding groove (42) are both greater than the length and width of the sliding column (49), and the height of the inner cavity of the sliding groove (42) is less than the height of the sliding column (49).

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